U.S. patent number 4,820,000 [Application Number 07/001,075] was granted by the patent office on 1989-04-11 for glove bag waste removal system for asbestos impregnated brakes.
Invention is credited to Earl B. Jacobson.
United States Patent |
4,820,000 |
Jacobson |
April 11, 1989 |
Glove bag waste removal system for asbestos impregnated brakes
Abstract
A lightweight, collapsible preferably PVC formed glove bag
asbestos brake removal/confinement system. The bag includes
removable stiffening ribs and a flexible membrane or bunge
controlled opening in one end to mount the bag over the brake
assembly. The bag can be suspended from the automobile itself, such
as by a mechanical clamp or magnetic plate assembly, or from any
convenient location. The bottom of the bag includes an access
zipper for removing or placing tools or the brakes in the bag. The
bag optionally includes a removable bottom protective panel to
prevent penetration of the bag by tools or brakes dropped
thereon.
Inventors: |
Jacobson; Earl B. (Crystal
Lake, IL) |
Family
ID: |
21694256 |
Appl.
No.: |
07/001,075 |
Filed: |
January 7, 1987 |
Current U.S.
Class: |
312/1; 134/42;
134/6; 15/345; 312/3; 422/918 |
Current CPC
Class: |
B08B
15/026 (20130101); B60S 5/00 (20130101) |
Current International
Class: |
B08B
15/00 (20060101); B08B 15/02 (20060101); B60S
5/00 (20060101); A61G 011/00 () |
Field of
Search: |
;312/1,3,5,6,283
;128/1B,1R ;280/770 ;224/42.42,42.45R,42.46R ;15/227,345
;134/6,10,21,42 ;138/97 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
|
|
2643067 |
|
Mar 1978 |
|
DE |
|
2936779 |
|
Apr 1981 |
|
DE |
|
3004066 |
|
Aug 1981 |
|
DE |
|
765635 |
|
Jun 1934 |
|
FR |
|
2346061 |
|
Oct 1977 |
|
FR |
|
WO8605431 |
|
Sep 1986 |
|
WO |
|
Other References
Hako, Minuteman, Asbestos Brake Drum Vacuum System, pp. 1-4. .
Nilfisk, Nilfisk Asbestos-Clene Systems, pp. 1-4. .
Pro/Control Products, Encapsulator, 1987, pp. 1-4..
|
Primary Examiner: Aschenbrenner; Peter A.
Assistant Examiner: Rendos; Thomas A.
Attorney, Agent or Firm: Silverman, Cass, Singer &
Winburn, Ltd.
Claims
What is claimed and desired to be secured by Letters Patent of the
United States is:
1. A glove bag waste removal system for asbestos impregnated
brakes, comprising:
a containment bag having at least one glove sleeve means therein
and flexible opening means for mounting said bag over a brake
assembly, said bag including a clear body formed in a substantially
cylindrical shape, which includes a pair of substantially rigid end
rings secured thereto at opposite ends thereof to form said body
substantially into a cylindrical shape, said opening means formed
in a first end thereof substantially in a plane formed by a first
end ring, said opening means including flexible sealing membrane
means having at least a pair of cross slits therein, said cross
slits formed orthogonally to one another to form a
button/buttonhole like assembly for inserting over the brake
assembly and having a second end formed opposite said first end
adjacent a second end ring, said second end sealed to said second
end ring and a plurality of stiffening means inserted between said
rings substantially parallel to one another in sleeves secured to
said body to form said cylindrical shape; and
means for supporting said bag adjacent the brake assembly.
2. The system as defined in claim 1 wherein said bag includes said
glove sleeve means located in one side thereof.
3. The system as defined in claim 2 wherein said bag includes at
least a second glove sleeve means therein.
4. The system as defined in claim 1 wherein said bag includes
zipper means in the bottom thereof to allow access into said
bag.
5. The system as defined in claim 1 wherein said bag includes
removable bottom protective panel means to prevent inadvertent
penetration of said bag.
6. The system as defined in claim 1 wherein said bag body is formed
from clear lightweight PVC material, which body is collapsible for
shipping and storage with said stiffening means being
removable.
7. The system as defined in claim 1 wherein said supporting means
include straps secured to said bag and magnetic plate means for
securing said straps and said bag to a convenient surface, such as
a car fender.
8. The system as defined in claim 7 wherein said magnetic plate
means include a flexible plate member formed from magnetic
impregnated polymer or PVC material.
9. The system as defined in claim 1 wherein said supporting means
include means for suspending said bag from any convenient
location.
10. A glove bag waste removal system for asbestos impregnated
brakes, comprising:
a collapsible containment bag having at least one glove sleeve
means therein and flexible opening means for mounting said bag over
a break assembly;
means for supporting said bag adjacent the brake assembly;
a pair of substantially rigid end rings secured to said bag wherein
when said bag is in the collapsed condition said rings lie in a
horizontal plane and when said bag is in an open condition said
rings lie in a vertical plane to form a system body having a
substantially cylindrical shape, said opening means formed in a
first end thereof substantially in a plane formed by a first end
ring, said opening means including flexible sealing membrane means
having at least a pair of cross slits therein, said cross slits
formed orthogonally to one another to form a button/buttonhole like
assembly for inserting over the brake assembly and having a second
end formed opposite said first end adjacent a second end ring, said
second end sealed to said second end ring; and
a plurality of removable stiffening means inserted between said
rings when said bag is in the open condition, said stiffening means
positioned substantially parallel to one another and secured to
said body to form said cylindrical shape.
11. A glove bag waste removal system for asbestos impregnated
brakes, comprising:
a containment bag having at least one glove sleeve means therein
and flexible opening means for mounting said bag over a brake
assembly, said bag including a clear body formed in a substantially
cylindrical shape, which includes a pair of substantially rigid end
rings secured thereto at opposite ends thereof to form said body
substantially into a cylindrical shape, said opening means formed
in a first end thereof and a second end sealed to a second end ring
and a plurality of stiffening means inserted between said rings
substantially parallel to one another in sleeves secured to said
body to form said cylindrical shape;
means for supporting said bag adjacent the brake assembly; and
said supporting means include straps secured to said bag and
magnetic plate means for securing said straps and said bag to a
convenient surface, such as a car fender.
12. The system as defined in claim 11 wherein said magnetic plate
means include a flexible plate member formed from magnetic
impregnated polymer or PVC material.
13. A glove bag waste removal system for asbestos impregnated
brakes, comprising:
a collapsible containment bag having at least one glove sleeve
means therein and flexible opening means for mounting said bag over
a break assembly;
means for supporting said bag adjacent the brake assembly;
a pair of substantially rigid end rings secured to said bag wherein
when said bag is in the collapsed condition said rings lie in a
horizontal plane and when said bag is in an open condition said
rings lie in a vertical plane to form a system body having a
substantially cylindrical shape;
a plurality of removable stiffening means inserted between said
rings when said bag is in the open condition, said stiffening means
positioned substantially parallel to one another and secured to
said body to form said cylindrical shape; and
said supporting means include straps secured to said bag and
magnetic plate means for securing said straps and said bag to a
convenient surface, such as a car fender.
14. The system as defined in claim 13 wherein said magnetic plate
means include a flexible plate member formed from magnetic
impregnated polymer or PVC material.
Description
BACKGROUND OF THE INVENTION
The invention relates generally to hazardous waste removal systems
and more particularly to an improved glove bag removal system for
removing asbestos impregnated brakes in a defined area.
Numerous prior art glove bag waste removal systems have been
utilized for a considerable period of time for removing waste from
a closely defined work area in which the contaminated or hazardous
wastes are confined. The worker is protected from the wastes since
the wastes are confined inside of the system and the worker works
in the system but avoids direct contact with the wastes by
utilizing the well known glove bag concept.
One particular application for glove bag waste removal is in
removing or repairing asbestos impregnated brake drum assemblies.
Asbestos fibers or particles are a proven hazardous waste and the
free releasing of the fibers/particles into the air is a serious
health hazard to workers and anyone else in the work area. OSHA
& NIOSH therefor have issued strict standards for limiting the
release of the fibers/particles to prevent exposing people to these
hazardous wastes.
Several prior art waste removal protection systems have been
proposed for cleaning, removing or working on asbestos impregnated
brakes and other brake parts. One system utilizes a vinyl hood on a
cylindrical metal wire cage suspended from a separate dolly stand.
The hood is substantially clear for visibility of the worker and
has a built-in air nozzle for dislodging the asbestos waste. A
second type of system utilizes a rigid cylinder with one or more
viewing windows which can be mounted on a low type jack or a
hydraulic lift. The cylinder also has built-in compressed air guns
with quick connect couplings and one to three cotton sleeves for
access to the inside of the cylinder. Both systems are adapted to
be connected to a negative pressure or vacuum filter system which
maintains the system in a negative pressure to sweep out any
dislodged asbestos waste.
Such systems although viable, present a number of disadvantages for
the user, especially users with a number of brake removal stations.
The systems and their attendant stands are expensive and very
cumbersome to move around and/or to share between workers.
Another somewhat related glove bag waste removal system and
application is disclosed in application Ser. No. 001,074, entitled
"Hazardous Waste Glove Bag Removal System", filed concurrently
herewith, the disclosure of which is incorporated herein by
reference.
SUMMARY OF THE INVENTION
The above and other disadvantages of prior art asbestos brake
removal/confinement systems and techniques are overcome in
accordance with the present invention by providing a lightweight,
collapsible glove bag waste removal system which easily is mounted
onto and removed from brake assemblies while protecting the worker
from release of the hazardous asbestos waste fibers/particles.
The glove bag preferably is formed from optically clear, flexible
PVC material with removable stiffening ribs. The bag can be
suspended from the automobile itself, such as by mechanical clamps
or a magnetic hook assembly, or from any other convenient location
such as a crane hook or a jack, if desired.
The bag includes one or more glove sleeves and access for one or
more compressed air hoses and/or tools. The bottom of the bag
includes an access zipper for removing or placing the brakes or
tools in the bag and optionally includes a removable bottom
protective PVC or plastic panel to prevent penetration of the bag
by tools or brakes dropped by the worker thereon. The bag includes
a flexible membrane or bunge controlled opening in one end to mount
the bag over the brake assembly.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the one embodiment of the asbestos
brake removal/confinement system of the invention;
FIG. 2 is a perspective functional diagram of the collapsibility of
the system of FIG. 1;
FIG. 3 is an end sectional view of the system of FIG. 1 taken along
the line 3--3 therein;
FIG. 4 is a perspective view of the system of FIG. 1 mounted on an
automobile and the brake assembly thereof; and
FIG. 5 is an end view of a second mounting embodiment of the
invention mounted on the automobile and the brake assembly
thereof.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIGS. 1 and 3, a first embodiment of the asbestos
glove bag brake removal/confinement system of the invention is
designed generally by the reference character 10. The system 10
includes a confinement housing or bag 12, which preferably is
formed from an optically clear flexible PVC material, to provide
strength while allowing the worker good vision into the bag. The
bag 12 has a pair of semirigid rings 14 and 16 sealed to or within
the ends of the bag 12. The bag 12 can be formed from several
pieces of PVC material and then electronically welded or heat
sealed to form an integral non-leaking bag. The rings 14 and 16
preferably are tubes formed from semirigid PVC material and then
are encased within the bag PVC material before sealing therein.
The bag 12 is generally collapsible as illustrated by arrows 18 in
FIG. 2, for storage or shipping. However, the bag 12 is assembled
by inserting a plurality of removable stiffening tubes or rods 20,
22, 24, and 26, which are inserted into respective sleeves 28, 30,
32, and 34 bonded to the bag 12.
The bag 12 includes at least one glove sleeve 36 in one side
thereof for use by the worker to avoid contact with the asbestos
waste. Preferably the bag 12 includes a second glove sleeve 38 in
the opposite side thereof to allow the worker easily to manipulate
the tools or brake assembly inside the bag 12. The glove sleeves 36
and 38 can include respective rigid cuffs 37 and 39, preferably
made from plastic, PVC or metal materials. The cuffs 37 and 39 can
be secured, welded or otherwise sealingly attached to the sleeves
36 and 38. This keeps the glove portions open for easy access and
allows the glove portions to be separate replaceable parts. Also,
the bag 12 could include a third glove sleeve (not illustrated) in
one end 40 of the bag 12, which would reach the length of the bag
12.
The opposite end of the bag 12 includes a flexible sealing membrane
42, which is inserted over the brake assembly when the bag 12 is
mounted for use by the worker. The membrane 42 can have a plurality
of cross slits 44 which allow the membrane 42 to be fitted over the
brake assembly, much like a button/button hole assembly. The
membrane 42 also can be replaced by other types of sealing means
such as a bunge controlled opening, which opening also could be
utilized in addition to the membrane 42.
The bag 12 further includes a plurality of access openings to
provide various functions for the worker without allowing the waste
to escape. A self-sealing penetration sleeve 46 is provided on one
side of the bag 12, to provide access for a probe, such as an
additional vacuum or compressed air probe. The sleeve 46 includes a
self-sealing cross slit membrane 48, which along with an inner tube
50 ensures that the penetration of the sleeve 46 by a probe does
not release waste. The details of the sleeve 46 are disclosed in
co-pending application Ser. No. 001,074.
The bag 12 also includes at least one grommet 52, which provides a
conventional quick disconnect compressed air hose fitting.
Additionally, the bag 12 includes a second self-sealing penetration
sleeve 54, which further includes a pair of ties or tabs 56 and 58
for attachment to and securing of a vacuum probe (not illustrated)
for removal of the loose waste to the conventional filter system
(also not illustrated).
The bottom of the bag 12 includes an access zipper 60 along the
length thereof, which can be opened as desired by manipulating a
zipper pull 62. Additionally, if desired, the bag 12 can include a
removable bottom protective panel 64, which can be placed in the
bottom of the bag to prevent penetration of the bag 12 when a tool
or brake is dropped thereon. The panel 64 also can be formed from a
substantially rigid PVC material.
The system 10 can be suspended for work on a brake assembly by a
pair of adjustable straps 66 and 68. The straps 66 and 68 can
include various fastening means 70 and 72 on the ends thereof such
as hooks, synthetic materials which adhere when pressed together
such as VELCRO.RTM. loops and hooks or snap connect assemblies in
various configurations. The straps 66 and 68 can be utilized to
support the system 10 from a variety of support structures, such as
overhead cranes or hydaulic lifts.
Additionally, in one preferred embodiment, the system 10 can be
suspended from a magnetic plate 74, which preferably is attached to
an automobile 76 as illustrated in FIGS. 4 and 5. The plate 74,
preferably is a flexible magnetic plate such as formed from
magnetic impregnated polymer or PVC material. The plate 74 then is
attached directly to a fender 78 of the automobile 76. The system
10, which only weighs about three to four pounds, is mounted over a
brake assembly 80 of the automobile 76 and then hung by the straps
66 and 68 and hooks 70 and 72 from the plate 74. The various hoses
or probes then can be inserted into the bag 12, such as a
compressed air hose 82 in the grommet 52 and a vacuum line or
second air hose probe 84 into the sleeve 46. A main vacuum line
probe 86 would be inserted and secured into the sleeve 54.
If desired, or for utilization on automobiles with fiberglass
fenders, the system 10 also can be suspended from other locations
as described above. Also, low pressure mechanical clamping means
(not illustrated) could be utilized on the edge of the wheel well
of the fenders 78 to provide support for the system 10.
The system 10 also can be suspended from a second magnetic panel
88, as illustrated in FIG. 5. The panel 88 is of a sufficient
length to suspend the system 10 with the straps 66 and 68
substantially vertical to provide additional stability to the
system 10. The plate 74, the panel 88 and the clamps (not
illustrated) also can be utilized in combination with a low
tack/high tack gripping tape on the contact surface thereof to
ensure that the plate 74, the panel 88 and the clamp will not slide
or be otherwise dislodged until the worker has completed the job.
Once the job is completed, the worker removes the system 10 for
storage and reuse, or disposal if appropriate.
Many modifications and variations of the present invention are
possible in light of the above teachings. Clearly the size, shape
and spacing of the bag and openings therein can be varied depending
upon the application. Also, although four stiffening rods or ribs
are disclosed, more or less rods could be utilized. The sleeves 46
and 54 and the grommet 52 also can be utilized to place tools, such
as a screw driver, into the bag 12. The removable and replaceable
glove portions are important, since the system 10 generally is
reusable. It is therefore, to be understood that within the scope
of the appended claims, the invention may be practiced otherwise
than as specifically described.
* * * * *